6456825 has 18 divisors (see below), whose sum is σ = 11565294. Its totient is φ = 3443520.

The previous prime is 6456823. The next prime is 6456851. The reversal of 6456825 is 5286546.

6456825 is a `hidden beast` number, since 645 + 6 + 8 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 144 + 6456681 = 12^2 + 2541^2 .

It is not a de Polignac number, because 6456825 - 2¹ = 6456823 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6456825.

It is not an unprimeable number, because it can be changed into a prime (6456823) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14124 + ... + 14573.

Almost surely, 2^6456825 is an apocalyptic number.

It is an amenable number.

6456825 is a deficient number, since it is larger than the sum of its proper divisors (5108469).

6456825 is a wasteful number, since it uses less digits than its factorization.

6456825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28713 (or 28705 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 6456825 is about 2541.0283351431. The cubic root of 6456825 is about 186.2114314384.

The spelling of 6456825 in words is "six million, four hundred fifty-six thousand, eight hundred twenty-five".